WiFi/Xfi (DS 10/24/18)(IS 10/2018)

Question 1

A network where devices are connected to each other and shared resources using radio signals that conform to a common standard.

Answer 1

Wireless Networks

Question 2

The most common wireless standard in use

Answer 2

WiFi (802.11)

Question 3

Who governs the WiFi standards

Answer 3

(IEEE) the Institute of Electrical and Electronics Engineers

Question 4

Links two or more devices within a single building or location using a wireless distribution method, providing a connection through an access point to the Internet.

Answer 4

Wireless Local Area Networks (LAN)

Question 5

Connects different LANs together. They interconnect buildings and cities together. The cover large areas such as towns and cities.

Answer 5

Wireless Wide Area Networks (WAN)

Question 6

These replace wires and cables of wired networks

Answer 6

Radio transmitters and receivers

Question 7

The commonly used different WiFi modes.

Answer 7

802. 11a
803. 11b
804. 11g
805. 11n
806. 11ac

Question 8

WiFi frequencies or bands

Answer 8

2.4 GHz, 5 GHz

Question 9

What is the theoretical maximum throughput for 802.11a and on what frequency

Answer 9

54 Mbps on 5GHz

Question 10

What is the theoretical maximum throughput for 802.11b and on what frequency

Answer 10

11 Mbps on 2.4 GHz

Question 11

What is the theoretical maximum throughput for 802.11g and on what frequency

Answer 11

54 Mbps on 2.4 GHz

Question 12

What is the theoretical maximum throughput for 802.11n and on what frequency

Answer 12

300 Mbps on 2.4 or 600 Mbps on 5 GHz

Question 13

What is the theoretical maximum throughput for 802.11ac and on what frequency

Answer 13

450 Mbps on 2.4 GHz

1300 Mbps on 5 GHz

Question 14

Radio transmissions over this WiFi mode allows communication at speeds over one gigabit per second

Answer 14

802.11ac

Question 15

What Technologies are used in WOH

Answer 15

MoCa, Ethernet, WiFi, Homeplug

Question 16

The two types of Dual Band Networks

Answer 16

Simultaneous/Concurrent, Selectable/Non-Concurrent

Question 17

What WiFi Physical Barriers Interference level is Medium

Answer 17

Water Bricks Marble

Question 18

What WiFi Physical Barriers Interference level is High

Answer 18

Concrete Metal

Question 19

This default Encryption setting provides compatibility with most clients choosing the highest security mode for each client based on its capabilities

Answer 19

WPA/WPA2-PSK (TKIP/AES)

Question 20

Wireless Camera, Alarm Systems, Digital Baby Monitors, Wireless audio or audio/video devices, Radar, Perimeter Sensors

Answer 20

Typical RF interference sources for 5 GHz band

Question 21

HomePlug Certified adapters are capable of what bandwidth

Answer 21

200Mbps, 500Mbps and now over 1Gbps.

Question 22

The app allows a customer to draw a rough floor plan of their home and ping from the app in different areas of the home to generate a heat map of the home.

Answer 22

Telstra WiFi-Maximiser

Question 23

Enables the technician to perform a quick speedtest as well as exploring WiFi sweet spots throughout the home

Answer 23

CloudCheck

Question 24

What is the ideal placement position for a wireless gateway

Answer 24

Central Location Elevated position An open area (avoid closets, filing cabinets, basements, and other tight spaces which weaken the WiFi signals)

Question 25

Simultaneous/Concurrent

Answer 25

2.4 GHz and 5 GHz networks used at same time

Question 26

Selective/Non-Concurrent

Answer 26

Choose which frequency band, you can only use 1 at a time

Question 27

Benefit of using 2.4 GHz

Answer 27

Better wifi range

Question 28

benefits of using 5 GHz

Answer 28

faster speed, less wifi interference

Question 29

When a wireless Gateway determines which band is most optimal for a Customer's WiFi connection based on signal strength and WFi Congestion thresholds.

Answer 29

Band Steering

Question 30

What is an ISP

Answer 30

internet service provider

Question 31

Three things needed for wireless internet

Answer 31

an ISP, configured wireless delivery capable equipment, wifi capable devices

Question 32

A device that connects routers or computers to the internet through a cable

Answer 32

Modem

Question 33

A device that transmits a wireless signal & connects devices to each other & the internet through a wired connection to the modem

Answer 33

Wireless Router

Question 34

A device that functions as both a modem and a router

Answer 34

Wireless Gateway

Question 35

The area in which a wireless-capable device can pick up the wireless signal & connect to the wireless network.

Answer 35

Signal Range

Question 36

A group of devices connected to each other & to the Internet without cables.

Answer 36

Wireless Network

Question 37

The online site used to view & change the settings of a router & wireless network.

Answer 37

Administration Site (GUI)

Question 38

The login information used to access the administration site.

Answer 38

router user name and password

Question 39

The name of a wireless network.

Answer 39

Network Name (SSID)

Question 40

The password used to connect to a wireless network.

Answer 40

Network Password (key)

Question 41

SSID

Answer 41

Service Set Identifier

Question 42

Devices are required to be certified WPA2 since when.

Answer 42

2006

Question 43

This makes it possible for a customer to access WiFi even when they're away from home.

Answer 43

Xfinity WiFi hotspots